Checking current alerts… View NWS forecast and alerts.
Will it freeze in Sheboygan Falls in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Fri, Nov 6: 28°F (Fri, Nov 6, 6:00 PM CST to Sat, Nov 7, 6:00 AM CST).
Tonight: forecast low 36°F. Frost possible.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
5 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 36°F Frost possible · Mostly Cloudy
- Fri, Nov 6 28°F Hard freeze · Partly Cloudy
- Sat, Nov 7 33°F Frost possible · Partly Cloudy
- Sun, Nov 8 34°F Frost possible · Mostly Clear
- Mon, Nov 9 40°F Above 36°F · Mostly Clear
- Tue, Nov 10 36°F Frost possible · Partly Cloudy
- Wed, Nov 11 37°F Above 36°F · Partly Cloudy
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Sheboygan Falls
The median first fall hard-freeze date (28°F) is October 21, from NOAA’s 1991–2020 Climate Normals at Sheboygan County Mem Airport. This is the 50% probability date, not a forecast for this year.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | May 3 · May 19 · Jun 2 | Sep 17 · Sep 29 · Oct 11 | 131 days |
| 32°F freeze | Apr 22 · May 5 · May 21 | Sep 26 · Oct 8 · Oct 23 | 154 days |
| 28°F hard freeze | Apr 8 · Apr 23 · May 9 | Oct 5 · Oct 21 · Nov 3 | 180 days |
Average high temperature by month
1991–2020 normals at Sheboygan County Mem Airport
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Sheboygan Falls, WI come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Sheboygan County Mem Airport (station USW00004841, elevation 746 ft), 3.0 mi from Sheboygan Falls. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Sheboygan Falls
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Sheboygan, WI | 5.0 mi | Apr 25 | Oct 23 |
| Plymouth, WI | 6.8 mi | May 3 | Oct 10 |
| Port Washington, WI | 24 mi | Apr 27 | Oct 22 |
| Manitowoc, WI | 27 mi | Apr 30 | Oct 20 |
| West Bend, WI | 28 mi | May 1 | Oct 12 |
| Grafton, WI | 29 mi | Apr 23 | Oct 24 |
| Cedarburg, WI | 31 mi | Apr 23 | Oct 24 |
| Fond du Lac, WI | 31 mi | Apr 27 | Oct 19 |
| Two Rivers, WI | 32 mi | Apr 27 | Oct 21 |
| Jackson, WI | 33 mi | Apr 30 | Oct 15 |
Frequently asked questions
When is the last frost in Sheboygan Falls?
On average, the last spring frost (32°F) in Sheboygan Falls is around May 5. In about 1 year in 10 it comes after May 21, and in 9 years in 10 it comes after April 22.
When is the first frost in Sheboygan Falls?
The first fall frost (32°F) usually arrives around October 8. There’s a 10% chance of a freeze by September 26 and a 90% chance by October 23.
Can it frost in Sheboygan Falls after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after May 19.
What growing zone is Sheboygan Falls?
Sheboygan Falls is in USDA Plant Hardiness Zone 5b (average annual extreme minimum temperature −15 to −10°F), based on the 2023 USDA map for ZIP code 53085. See growing zones in Wisconsin.
More: all Wisconsin frost dates · Wisconsin growing zones · frost vs. freeze